jQuery Bubble Popup is a plugin to display smart, animated & shadowed, bubble popups or tooltips with few lines of code in jQuery. The plugin support HTML5 and it is fully compatible with Internet Explorer, Firefox, Chrome, Opera and Safari.

qTip is an advanced tooltip plugin for the ever popular jQuery JavaScript framework. Built from the ground up to be user friendly, yet feature rich, qTip provides you with tonnes of features like rounded corners and speech bubble tips. it's completely free.

TipTip detects the edges of the browser window and will make sure the tooltip stays within the current window size. As a result the tooltip will adjust itself to be displayed above, below, to the left or to the right of the element with TipTip applied to it, depending on what is necessary to stay within the browser window. It uses zero images and is completely customizable via CSS.